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kifflom [539]
3 years ago
11

Water can’t stick to itself. True or false?

Physics
1 answer:
astra-53 [7]3 years ago
6 0

Answer:ture

Explanation:

You might be interested in
How much force would it would be required to stop a 950kg car traveling at 30 M/S in 1.5 seconds
gavmur [86]

Answer:

28500

Explanation:

Force equation - F = m * a

F = 950 * 30

F = 28500

7 0
3 years ago
Using the Bohr model, what is the ratio of the energy of the nth orbit of a triply ionized beryllium atom (Be3+, Z = 4) to the e
emmainna [20.7K]

Answer:

16

Explanation:

solution:

by taking the ratio of the energy E_n,be of the nth orbit of a beryllium atom

Z_be=4 to the energy E_n,h of the nth orbit of a hydrogen (Z_h=1) atom  gives

E_n,B/E_n,H=-(2.18*10^-18)*Z^2_BE/-(2.18*10^-18)*Zh^2/n^2

                    =Z^2_BE+/Z^2_H

                    =(4)^2/(1)^2

                    = 16

8 0
4 years ago
What are some methods that astronomers use to study interstellar dust?
larisa [96]

Answer:

is to observe through the telescope, study stars inside of the nebula and sometime enhance he pcture to see the real color of the nebula. hopes this helps.

6 0
3 years ago
State three ways in which a machines are useful to us.
olga2289 [7]
1: a machine makes our work easier

2: a machine can help us find important information

3: a machine can help us transport from a place to another
3 0
3 years ago
a student attaches a 0.5 kg object to a 0.7 m string and rotates the object around her head and parallel to the ground. how much
Marina CMI [18]

The object would have a centripetal acceleration <em>a</em> of

<em>a</em> = (12 m/s)² / (0.7 m) ≈ 205.714 m/s²

so that the required tension in the string would be

<em>T</em> = (0.5 kg) <em>a</em> ≈ 102.857 N ≈ 100 N

(rounding to 1 significant digit)

3 0
3 years ago
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